Water heating and measuring apparatus.



E. G. JAY, JR.

- WATER HEATING AND MEASURING APPARATUS.

APPLIOATIOK FILED JAN. 31,1911 1,077,350, Patented Nov. 4, 1913.

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IN VE N TOR #lflvfssss A a (7 UNITED STATES PATENT OFFICE.

EDWARD G. JAY, JR, or P ILADELPHIA; PnNNs'YLvANIA, AssIGNon. 'roicrosnrn s. LovERINe WHARTON, WILLIAM s. HALLoW-EnL, AND JOHN C. JONES, ALL on rHILADnLrnm, rnNNsYLvaNIA, Dome BUSINESS AS FIRM OF HARRISON SAFETY BOILER wonKs, or PHILADELPHIA; PENNSYLVANIA;

WATER HEATING AND MEASURING APPARATUS.

To all whom iii may concern:

Be it known that I, EDWARD G, JAY, Jr., a citizen of the United States of America,

residing in the city and county of Philadelphia and State of Pennsylvania, have in-' vented a certain new and useful Improvement in Water Heating and Measuring Ap-- steam and the water thus heated and the 'parative cheapness .and ease.

admixed water of condensation of the steam heating it is passed to a weir chamber divided into inlet and outlet compartments by a weir over which the water flows, provision being made for equalizing the steam pres' sure in the weir chamber and heating chamber proper and for measurlng the varyln accumulation of water on the supply side 0 the weir to thereby maintain the rate of flow over the weir.

The object of the present invention is to provide improved apparatus of the kind described, characterized-by the simple and ef-.

fective manner in which the various parts are constructed and relatively arranged to provide a compact self-contained combined heating and measuring apparatus which will be efiicient and reliable in-operation and may be'constructed and installed with comby it, reference should be had to the accom- 'panying drawings and descriptive matter in which" I have illustrated and described two forms in which my invention may beembodied.-

- :Of the drawings, is a sectional elevation of a combined water heating and hieasuring 'appjaratq t constructed in v accord- Specification of ietters Patent. Application filed January 31, 1512. Serial No. 374,604.

-shown, ,the discharge end of the pipe I Patented Nov. 4,'i913.

ance with the present invention, and Fig; 2 1s a partial elevation taken similarly to Fig. 1 showing a modified construction. I

In' the drawings, A, represents atank structure shaped to provide a horizontally elongated weir chamber divided into an inlet compartment A and an outlet compartment A bya weir B, which, as shown, is notched at B to provide a discharge orifice. The tank structure is also shaped'to provide a heating chamber A located above the weir chamber at one end of the'latter.

The cold water to be heated is admitted to the top of the chamber A throu h the Water supply pipe 0. The water disc argesfrom the pipe G into a trough D located within the heating chamber, and flows from the trough onto the trays or baflies E, as in the open feed water heaters as usually constructed.

F, represents the supply pipe for. the steam for heating the water and G represents an auxiliary water supply connection to the heating chamber such as is commonly employed in connection with open feed water heaters for returning 'water of condensation from' steam iping, radiators and the like. The heating chamber, as

. shown in Fig; 1, is provided with, a

hopper-like-bottoni meinber' H having at its center a discharge port. to which is connected one end of the conduit I through which the water falling to the bottom of the heating chamber passes to the inlet compartment A of the weir chamber. s is connected to and supported by a ballle J which is mounted within the inlet compartment of the weir chamber and forms a means for insuring a quiet flow and the avoidance of eddy currents in the water passing over'theweir. The weir chamber is connected at its top tothe vapor space of the heating chamber by the conduit R. The supply of waterto the heating chamber throng 1 the pipe G is controlled by a valve C" connected to a float K responsive to the variations in the'height of water'level inv the outlet compartment of the weir chamber,

t e arrangement bein such that the valve (3' is cut oii on a'pre etermined rise-in the .wa ter level in compprtrnent A while the valve is opened on a ll in this Water level.

I L represents an overflow channel to which surplus, water passes to a 'float chamber; M and from thence escapes through a waste pipe N and valve N, the latter being operated by a float, not shown, located in the float chamber M, which with the'cooperating parts referred to, may be of the usual proper.

ports form commonly used in connection with the water level in the compartment A P represents eiflvalve in the pipe P by which the flow through the latter may be regulated or cut off as desired.

The float chamber P need not extend to the togof the weir chamber but when it does may be formed therein as shown on the drawings to equalize the vapor. pressures .base member Q proper.

inthe float chamber and the weir chamber proper. The stem 0 of the float passes through the top wall of the weir chamber and operates suitable indicating, recording or registering mechanism located within a casing Q which is mounted on the topof the weir chamber at the side of the heating chamber. As shown the casing Q is mounted on a base member Q which forms a cover closing the openingformed in the top wall of the Weir chamber above the float chamber P. As shown, spaces Q are interposed between the'bottom of the casing Q and the Suitable stufling box provisions or the like are made to pre vent'leakage of'steam along the float stem 0 without exerting an appreciable fric tional resistance to the movement of the stem. The mechanism located within the casing Q may be of the usual kind-employed for the purpose, examples of which are shown for instance by the Lea Patent 815,102 and by the Gibson application referred to above.

Witlr the apparatus disclosed, as ordi-v narily used, the vapor ressurewithin the heating and weir cham ers is commonly a pound or so above that of the atmosphere though it mayvary from below atmospheric pressure up to ten pounds or twenty pounds above atmospheric pressure. The operation of the apparatus disclosed is inde endent of this pressure except for its unba anced action on the float stem 0. Owing to the relatively small cross-section of the latter this unbalanced action is in general insignificant,

necessary. I I y In the arrangement shown in Fig.1 the heating chamber A is located above the outlet compartment A of the weir chamber. A somew at more convenient and preferable thus making compensating provisions 1111- construction is illustrated in Fig. 2 which difiers from the arrangement shown in 1 in t-hatthe heating chamber is located above the inlet compartment A of the weir chamber and the heated water passes from the heating chamber A directly into the inlet compartmentA of the "weir chamber;

replaced in Fig. 2 by a portion of the top wall proper of the weirchamber, and the pipe I is entirely dispensed with in Fi 2. In this constructiomtherfloatchamber is located in the outlet compartment A of the weir chamber and the pipe PA, corresponding to the pipe P of Fig.1 is extended through the weir, the nozzle P and the valve P being located, as shown, within the compartment A. v I

' It is apparent that apparatusconstru'ctedand arranged as described is. compact and self-contained and that the arrangement of the casing Q on top of the weir chamber is a'convenient one and places this mechanism in an accessible position. The compactness of the structure diminishes heat radiation losses, and the general arrangement of the apparatus facilitates its construction and 'installation and makes it readily possible to provide ttie weir compartment A and A with the necessary storage capacity and horizontal cross sectional area. The stor-.

age capacity and horizontal cross sectional area of the inlet compartment A makes, it possible to correspondingly diminish or entirely do-away space ordinarily provided in the heating chamber proper whileat the same timekeeping the apparatus in a compact and convenient' form.

' To appreciate the extent to which the features of construction disclosed cooperate in making possible a highly compact and conwith the storage reservoir The bottom member H of Fig. l is,in efi'ect,

venient structure it"is necessary to understand that the conditions of operation prescribe certain minimum limits on the capacity and horizontal cross sectional areas of both the weir chamber compartments A and A The inlet compartment A must have suflicient depth and horizontal area to insure a fairly quiet flow over the weir at the times at which the maximum inflow of water into the weir .chamberoc'curs and I when this inflow is. most irregular. The

outlet compartment must have suflicien't storage capacity to accommodate all the water which may accumulate'on the supply side of the weir above the lowermost level of flow over the weir without interfering with the free flow over the weir in order to avoidsuch interferencewhen, as may sometimes occur, the withdrawal of water from the weir chamber suddenly ceases after a period in which the how of water into the weir chamber has been at a maximum. Furthermore, the horizontal cross sectional area of the outlet compartment A should be great enough so that ordinary changes in the rate at which water is withdrawn from the weir .chambcr will make comparatively small changes in the height of water level in the outlet chamber; for, if such changes in the height of water level are too great it is diilicult to arrange the valve C and its float actuating mechanism so that the valve will not close too much or open too widely on moderate changes in. the rate at which water is withdrawntrom the weir chamber. The effect of too great an opening or closing movement of the valve C under these conditions is to produce unnecessary and undesirable fluctuations in the rate at which cold water is passed into the heating chamber and weir chamber. In consequence of these considerations it is necessary that the horizontal cross sectional area of the outlet compartment? A at the level oi the water thcr in must be approximately equal to or greater, and never substantially less than the correpondiug area of the inlet compartment, and ordinarily, in the type of apparatus disclosed, the weir is advantageously arranged approximately midway between the ends of the weir chamber.

The heating chamber A must discharge into, and the float tank 1 must be connected with "the inlet compartunmt A of the weir chamber: but. where the apparatus is made as compact as the conditions of operation permit, it is not possible to locate both the heating chamber and the mechanism actu ated by the valve above the inlet compartment of the weir chamber. This difficulty is avoided with my arrangements by locating the heating chamber A above the weir chamber at one end of the latter, and by locating the float tank I. in the weir compartment at the other end of the weir chamber t'aom that at which the heatingchamber is located. and by connecting either the heating chamber as s'llOWIi in Fig. l, or the float chamber as shown in Fig. 2 to the inlet'compartment- A by a conduit passing over or through the weir.

lVhile in accordance with the provisions of the statutes I have illustrated and de scribed the best forms of my invention now known to me it will be apparent .to those skilled. ind-he art that changes may be made iii the form of the apparatus disclosed withratus comprising in combination a weir chamber, a weir located in said weir chambe'r approximately midway between the ends of the latter and dividing said chamber intoinlet and outlet compartments, a heating chamber aboveth'e weir chamber at one end of the latter, steam and water supply connections to said heating chamber, provisions for conveying the water heated therein to the inlet compartment of the weir chamber,

a float chamber located within the compartment of the weir chamber at the opposite end of the latter from said heating chamber and provisions placing said float chamber in communitaltion with said inlet :compartmcnt below the lowermost level of flow over the ,weir, a float located within the float chamber and". having a stem projecting through the top wall of the weir chamber, andcooperating tloat actuated mechanism said float chamber.

2. 'Wate" heating and measuring apparatus havin in combination, a unitary tank structi'ire iomprising a weir chamber and a heating one em of the latter, a weir dividing said weir chamber into inlet and outlet compartmentsfsaid inlet compartment being atithe end of the weir beneath said heating chammounted ontop of the weir chamber above '90] r ber, steam and water supply connections to 0 said;heating chamber, provisions for conveying the water heated therein to the inlet compartment of the weir chamber, a float chamber located within the outlet'compart ment of the weir chamber, a conduit connecting said float chamber to said inlet compartment below the lowermost level of How ever the weir, said float chamber being also open to the weir chamber above the maximum height of waterlevel therein, a float 1 located within the float chamber and having a stem projecting through the top .wall of the weir chamber, and cooperating float ac tuated mechanism mounted on top of the weir compartment above said float chamber.

EDl VARD G.. JAY, JR. Witnesses:

--Ronnnr G. CLIFTON, Romzn'r S. BLAKE.

iiopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

a'mber above the weir chamber at 95 

